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❖ Every single celled organism is able to survive because it carries out metabolic activities.
Metabolic activity is a set of chemical reactions which are needed for an organism to maintain it's life.
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Bony matrix is solidly filled with organic ground substance and inorganic salts, leaving only tiny spaces (lacunae) that contain the osteocytes, or bone<span> cells</span>
If it's the first mammal on earth then it's a type of reptile not pretty sure the name and what it looks like but it's a type of reptile for sure even though generation to generation we Been evolve by different types of mammal but before they where all fish a type of fish idk yet though lol.
Answer:
Trophic Cascade
Explanation:
Trophic cascade is when the ecosystem experiences a level of a certain species being reduced or removed.
Answer:
because they have thicker walls
Explanation:
blood is punped our of the heart very fast which means it would need a blood vessel witch thick walls to withstand the pressure. thin walls would cause the blood vessle damage and may evwn break as it wouldn't be able to withstans the pressure.
